Company lists · Data refreshed September 2026

Top 25 Immunooncology companies worldwide

Name: Immunooncology companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 2,891 companies tracked

RevenueBase identified 2,891 immunooncology companies worldwide as of September 2026 and tracks 299,233 professional contacts across them, including 139,069 with verified work emails. The United States is the largest market and Cambridge the largest hub.

This list covers immunooncology companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for immunooncology companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

2,891Companies

299,233Contacts tracked

139,069Verified emails

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The 25 largest immunooncology companies worldwide

Ranked by team size

Top 25 of 2,891 immunooncology companies worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to immunooncology companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sanofi	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	10001+	83,412 contacts →
	Indirect evidence “We are an R&D driven, AI-powered biopharma company committed to improving people’s lives and delivering compelling growth.” Source: RevenueBase Database · checked Sep 20, 2026
2	Abbvie	Indirect evidence	North Chicago, IL, United StatesHQ checked Sep 20, 2026	10001+	50,568 contacts →
	Indirect evidence “AbbVie is a global biopharmaceutical company focused on creating medicines and solutions that put impact first, for patients, communities, and our world.” Source: RevenueBase Database · checked Sep 20, 2026
3	Bristol Myers Squibb	Indirect evidence	Lawrence Township, NJ, United StatesHQ checked Sep 20, 2026	10001+	36,379 contacts →
	Indirect evidence “At Bristol Myers Squibb, we work every day to transform patients’ lives through science.” Source: RevenueBase Database · checked Sep 20, 2026
4	Gilead Sciences	Indirect evidence	Foster City, CA, United StatesHQ checked Sep 20, 2026	10001+	13,864 contacts →
	Indirect evidence “At Gilead, we set – and achieve – bold ambitions to create a healthier world for all people.” Source: RevenueBase Database · checked Sep 20, 2026
5	Astellas Pharma	Indirect evidence	Chuo-ku, JapanHQ checked Sep 20, 2026	10001+	6,426 contacts →
	Indirect evidence “Astellas is a global life sciences company committed to turning innovative science into VALUE for patients.” Source: RevenueBase Database · checked Sep 20, 2026
6	Merck Healthcare	Indirect evidence	Darmstadt, GermanyHQ checked Sep 20, 2026	10001+	6,208 contacts →
	Indirect evidence “Life is a beautiful gift and health is what allows us to enjoy it.” Source: RevenueBase Database · checked Sep 20, 2026
7	Biontech SE	Indirect evidence	Mainz, GermanyHQ checked Sep 20, 2026	1,001-5,000	4,536 contacts →
	Indirect evidence “Biopharmaceutical New Technologies (BioNTech) is a global biotechnology company aspiring to translate science into survival by developing new immunotherapies utilizing the full…” Source: RevenueBase Database · checked Sep 20, 2026
8	Kite Pharma	Indirect evidence	Santa Monica, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	3,766 contacts →
	Indirect evidence “At Kite, a Gilead Company, our singular focus is achieving cures with cell therapy.” Source: RevenueBase Database · checked Sep 20, 2026
9	Incyte	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 20, 2026	1,001-5,000	3,224 contacts →
	Indirect evidence “Incyte is focused on advancing biopharmaceutical innovation.” Source: RevenueBase Database · checked Sep 20, 2026
10	Genmab	Indirect evidence	2500 Valby, DenmarkHQ checked Sep 20, 2026	1,001-5,000	2,539 contacts →
	Indirect evidence “We are an international biotechnology company dedicated to improving the lives of people with cancer and other serious diseases through innovative antibody medicines.” Source: RevenueBase Database · checked Sep 20, 2026
11	Beigene	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 20, 2026	n/a	2,135 contacts →
	Indirect evidence “Effective March 17, 2025, The U.S.” Source: RevenueBase Database · checked Sep 20, 2026
12	Argenx	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,952 contacts →
	Indirect evidence “argenx is a global immunology company committed to improving the lives of people living with severe autoimmune diseases.” Source: RevenueBase Database · checked Sep 20, 2026
13	Novartis Oncology	Indirect evidence	Basel, SwitzerlandHQ checked Sep 20, 2026	10001+	1,580 contacts →
	Indirect evidence “At Novartis, our mission is to discover new ways to improve and extend people's lives.” Source: RevenueBase Database · checked Sep 20, 2026
14	Exelixis	Indirect evidence	Alameda, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,426 contacts →
	Indirect evidence “Every Exelixis employee is united in an ambitious cause: to transform science into new treatments that give cancer patients and their families hope for the future.” Source: RevenueBase Database · checked Sep 20, 2026
15	Iovance Biotherapeutics, INC	Indirect evidence	San Carlos, CA, United StatesHQ checked Sep 20, 2026	501-1,000	985 contacts →
	Indirect evidence “Iovance Biotherapeutics (NASDAQ: IOVA) aims to be the global leader in innovating, developing and delivering tumor infiltrating lymphocyte (TIL) therapies for patients with cancer.” Source: RevenueBase Database · checked Sep 20, 2026
16	Revolution Medicines	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	879 contacts →
	Indirect evidence “We are Revolutionaries – passionate in our singular pursuit of discovering, developing and delivering innovative, targeted medicines for patients living with cancer.” Source: RevenueBase Database · checked Sep 20, 2026
17	Seagen	Indirect evidence	Bothell, WA, United StatesHQ checked Sep 20, 2026	1,001-5,000	857 contacts →
	Indirect evidence “Seagen is now part of Pfizer!” Source: RevenueBase Database · checked Sep 20, 2026
18	Blueprint Medicines	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 20, 2026	501-1,000	811 contacts →
	Indirect evidence “Blueprint Medicines, a Sanofi company, is a fully integrated global biopharmaceutical company that invents life-changing medicines.” Source: RevenueBase Database · checked Sep 20, 2026
19	Autolus Therapeutics	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	712 contacts →
	Indirect evidence “Autolus is a CAR T cell therapy company.” Source: RevenueBase Database · checked Sep 20, 2026
20	Minapharm Pharmaceuticals	Indirect evidence	Cairo, EgyptHQ checked Sep 20, 2026	1,001-5,000	708 contacts →
	Indirect evidence “Minapharm Pharmaceuticals is a leading pharmaceutical company in Egypt and the Middle East and the premier biopharmaceutical company in Africa with over 20 years of experience in…” Source: RevenueBase Database · checked Sep 20, 2026
21	Adaptive Biotechnologies Corp	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	501-1,000	678 contacts →
	Indirect evidence “Adaptive Biotechnologies is a pioneer and leader in immune-driven medicine that aims to improve people’s lives by learning from the wisdom of their adaptive immune systems.” Source: RevenueBase Database · checked Sep 20, 2026
22	Menarini Stemline	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	501-1,000	677 contacts →
	Indirect evidence “The Menarini Group ("Menarini"), a leading Italian pharmaceutical and diagnostics company, and Stemline Therapeutics, Inc.("Stemline"), a wholly-owned subsidiary of the Menarini…” Source: RevenueBase Database · checked Sep 20, 2026
23	Gennova Biopharmaceuticals	Indirect evidence	Pune, IndiaHQ checked Sep 20, 2026	501-1,000	662 contacts →
	Indirect evidence “Gennova Biopharmaceuticals Ltd, headquartered in Pune, India, is a biotechnology company dedicated to the research, development, production, and commercialization of…” Source: RevenueBase Database · checked Sep 20, 2026
24	Dendreon	Indirect evidence	Seal Beach, CA, United StatesHQ checked Sep 20, 2026	501-1,000	637 contacts →
	Indirect evidence “Dendreon is a commercial-stage biopharmaceutical company and pioneer in the development of immunotherapy.” Source: RevenueBase Database · checked Sep 20, 2026
25	Arcus Biosciences	Indirect evidence	Hayward, CA, United StatesHQ checked Sep 20, 2026	501-1,000	632 contacts →
	Indirect evidence “Arcus Biosciences is a rapidly growing, clinical-stage, global biopharmaceutical company developing differentiated molecules and combination medicines that may have the potential…” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: immunooncology companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names immunooncology companies.
Partial evidence: Its own public description names part of immunooncology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name immunooncology companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,891 immunooncology companies worldwide

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Immunooncology companies worldwide at a glance

As of Sep 20, 2026

46.5%Verified-email coverage

103.5Average contacts per company

11-50Median size (employees)

3.4%Largest-city concentration · Cambridge

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

1,298

11-50

978

51-200

419

201-500

101

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among immunooncology companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for immunooncology companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “immunooncology companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names immunooncology companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among immunooncology companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 139,069 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Immunooncology companies by location

25 lists · largest first

Every Immunooncology companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names immunooncology companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many immunooncology companies are there worldwide?

RevenueBase identified 2,891 immunooncology companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Sanofi, headquartered in Paris, tops this list with the largest team on record.

Which country has the most immunooncology companies?

The United States leads with 1,150 companies, followed by China (185) and the United Kingdom (145). Every immunooncology companies list by country and city is linked on this page.

Which city has the most immunooncology companies?

Cambridge leads with 99 headquartered companies, followed by San Diego (97) and Boston (55).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 139,069 verified decision-maker contacts tracked across these 2,891 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.